. >>> president obama and first lady michelle on their way to south africa this morning to attend the memorial service for former south african president and anti-apartheid icon nelson mandela. former presidents jimmy carter, george w. bush and bill clinton, along with former secretary of state hillary clinton are also attending. the massive memorial service, perhaps the largest honestly in history scheduled for tuesday in johannesburg's fnb stadium where president obama is expected to sta speak. a funeral will be in nelson mandela's hometown. here's live pictures from south africa where a prayer service is being held at the nelson mandela foundation hosted by archbishop desmond tutu. >>> ron allen about a half hour away in soreto. >> reporter: yes, here we are across the street from the nelltnel nelson mandela family home. you can see there's a street party that continues on now for several days since mr. mandela's death was announced on thursday evening here. the street has been filling with marchers, with choirs, with schoolchildren, with ordinary people who have come from far and